The use of intraoperative image guided navigation (NAV) in spine surgery is increasing. NAV is purported to improve the accuracy of pedicle screw placement but has been criticized for potentially increasing surgical cost, a component of which may be prolongation of total operative time due to time required for setup and intra-operative imaging and registration. In this study, we examine the effect of the introduction of O-Arm conical CT spinal navigation on surgical duration. We retrospectively… CONTINUE READING